If you want your relationship, it's worth saving. That said, you can only change you, you can't change your partner.
Browse other threads, post often; you'll find help here.
ME: 38 BF: 40 T: 10y, no kids, no M (by choice) BD: 7/14/14, BF admits to PA, wants out, lies about new R. 10/1/14: I move out, BF lies about move in with OW 12/4/14: OW confronted, reveals all the lies